A view across the devastated neighbourhood of Richmond in Halifax, Nova Scotia after the Halifax Explosion, looking toward the Dartmouth side of the harbor. The steamship Imo, one of the ships in the collision that triggered the explosion can be seen aground on the far side of the harbor. Public domain

The Halifax Explosion was one of history's worst man-made, non-nuclear explosions. The disaster killed about 2,000 people, and part of the city was completely leveled. So how and when did Halifax begin to rebuild? Tune in to find out.